package com.atguigu.yygh.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.yygh.hosp.repository.DepartmentRepository;
import com.atguigu.yygh.hosp.service.DepartmentService;
import com.atguigu.yygh.model.hosp.Department;
import com.atguigu.yygh.vo.hosp.DepartmentQueryVo;
import com.atguigu.yygh.vo.hosp.DepartmentVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
public class DepartmentServiceImpl implements DepartmentService {

    @Autowired
    private  DepartmentRepository departmentRepository;


    //上传科室接口
    @Override
    public void save(Map<String, Object> paramMap) {
        //paramMap 转换 department 对象
        String s = JSONObject.toJSONString(paramMap);
        Department department = JSONObject.parseObject(s,Department.class);

        //根据医院编号 和 科室编号查询
        Department departmentByHoscodeAndDepcode = departmentRepository.
                getDepartmentByHoscodeAndDepcode(department.getHoscode(), department.getDepcode());
        //判断
        if (departmentByHoscodeAndDepcode != null){
            departmentByHoscodeAndDepcode.setUpdateTime(new Date());
            departmentByHoscodeAndDepcode.setIsDeleted(0);
            departmentRepository.save(departmentByHoscodeAndDepcode);
        }else {
            department.setCreateTime(new Date());
            department.setUpdateTime(new Date());
            department.setIsDeleted(0);
            departmentRepository.save(department);
        }
    }

    @Override
    public Page<Department> findPageDepartment(int page, int limit, DepartmentQueryVo departmentQueryVo) {

        //创建Pageable对象 设置当前页和每页记录数
        //0是第一页
        Pageable pageable = PageRequest.of(page-1,limit);
        // 创建Example对象
        Department department = new Department();
        BeanUtils.copyProperties(departmentQueryVo,department);
        department.setIsDeleted(0);
        ExampleMatcher matcher = ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);
        Example<Department> example = Example.of(department,matcher);

        Page<Department> all = departmentRepository.findAll(example, pageable);
        return all;
    }

    //删除科室接口
    @Override
    public void remove(String hoscode, String depcode) {
        //根据医院编号和科室编号查询
        Department departmentByHoscodeAndDepcode = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if (departmentByHoscodeAndDepcode != null){
            //调用方法删除
            departmentRepository.deleteById(departmentByHoscodeAndDepcode.getId());
        }

    }
    //根据医院编号 查询医院所有科室列表
    @Override
    public List<DepartmentVo> findDeptTree(String hoscode) {
        //创建list集合 用于最终数据封装
        List<DepartmentVo> result = new ArrayList<>();
        //根据医院编号，查询医院所有科室信息
        Department department = new Department();
        department.setHoscode(hoscode);
        Example example= Example.of(department);
        //所有科室列表 all
        List<Department> all = departmentRepository.findAll(example);

        //根据大科室编号  bigcode分组，获取每个大科室里面下级子科室
        Map<String,List<Department>> collect = all.stream().collect(Collectors.groupingBy(Department::getBigcode));
        //遍历map集合 collect
        for (Map.Entry<String,List<Department>> entry:collect.entrySet()){
            //大科室比编号
            String bigcode = entry.getKey();

            //大科室编号对应的全局数据
            List<Department> departmentList = entry.getValue();

            //封装大科室
            DepartmentVo departmentVo = new DepartmentVo();
            departmentVo.setDepcode(bigcode);
            departmentVo.setDepname(departmentList.get(0).getBigname());

            //封装小封建
            List<DepartmentVo> children = new ArrayList<>();
            for (Department department1: departmentList
            ){
                DepartmentVo departmentVo2 =new DepartmentVo();
                departmentVo2.setDepcode(department1.getDepcode());
                departmentVo2.setDepname(department1.getDepname());
                //封装到List集合
                children.add(departmentVo2);
            }
            //把小科室list集合放到大科室children里面
            departmentVo.setChildren(children);
            //放到最终result里面
            result.add(departmentVo);

        }
        return result;
    }

    //根据科室编号，和医院编号，查询科室名称
    @Override
    public String getDepName(String hoscode, String depcode) {
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if (department != null){
            return department.getDepname();
        }
        return null;
    }

    @Override
    public Department getDepartment(String hoscode, String depcode) {
        return departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
    }
}
